Sweet broom (Cytisus) is hardy and evergreen in Virginia. To propagate: take 6-inch cuttings of this year's growth in late August. Dip in rooting hormone, plant in moist seed-starting mix, keep in bright shade, and maintain moisture. Root 8+ cuttings—some won't take. Once rooted, store in unheated garage (dark is fine) until late February, then bring out and plant.
Prune right after flowering—cut green stems back 1/2 to 2/3, never into brown wood. Annual post-bloom pruning keeps plants dense and extends their lifespan (broom is short-lived). Pruning now sacrifices next year's flowers and risks winter-kill on new growth.
Your plant stayed green all winter—it's happy where it is. Propagate now, prune later, enjoy for years.
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